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Extract from the Register of European Patents

EP About this file: EP0489595

EP0489595 - Propylene oxide purification [Right-click to bookmark this link]
Former [1992/24]Lower alkylene oxide purification
[1994/35]
StatusNo opposition filed within time limit
Status updated on  19.04.1996
Database last updated on 02.11.2024
Most recent event   Tooltip07.12.2007Lapse of the patent in a contracting statepublished on 09.01.2008  [2008/02]
Applicant(s)For all designated states
ARCO Chemical Technology, L.P.
Two Greenville Crossing, 4001 Kennett Pike, Suite 238
Greenville, Delaware 19807 / US
[N/P]
Former [1992/37]For all designated states
ARCO Chemical Technology, L.P.
Two Greenville Crossing 4001 Kennett Pike, Suite 238
Greenville, Delaware 19807 / US
Former [1992/24]For all designated states
ARCO CHEMICAL TECHNOLOGY INC.
3 Christina Centre Suite 902 201 N Walnut Street
Wilmington Delaware 19801 / US
Inventor(s)01 / Shih, T. Thomas
806 Northwinds Drive
Bryn Mawr, PA 19010 / US
[1992/24]
Representative(s)Cropp, John Anthony David, et al
MATHYS & SQUIRE 100 Grays Inn Road
London, WC1X 8AL / GB
[1992/24]
Application number, filing date91311350.205.12.1991
[1992/24]
Priority number, dateUS1990062300706.12.1990         Original published format: US 623007
[1992/24]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0489595
Date:10.06.1992
Language:EN
[1992/24]
Type: B1 Patent specification 
No.:EP0489595
Date:14.06.1995
Language:EN
[1995/24]
Search report(s)(Supplementary) European search report - dispatched on:EP10.03.1992
ClassificationIPC:C07D301/32, C07D303/04
[1992/24]
CPC:
C07D301/32 (EP,US)
Designated contracting statesBE,   DE,   ES,   FR,   GB,   IT,   NL [1992/24]
TitleGerman:Reinigung von Propylenoxid[1994/35]
English:Propylene oxide purification[1994/35]
French:Purification de l'oxyde de propylène[1994/35]
Former [1992/24]Reinigung von niederen Alkylenoxiden
Former [1992/24]Lower alkylene oxide purification
Former [1992/24]Purification d'oxydes d'alcoylènes inférieurs
Examination procedure01.08.1992Examination requested  [1992/40]
09.09.1992Despatch of a communication from the examining division (Time limit: M06)
21.01.1993Reply to a communication from the examining division
11.03.1993Despatch of a communication from the examining division (Time limit: M06)
17.09.1993Reply to a communication from the examining division
26.10.1993Despatch of a communication from the examining division (Time limit: M07)
06.05.1994Reply to a communication from the examining division
18.07.1994Despatch of communication of intention to grant (Approval: Yes)
07.12.1994Communication of intention to grant the patent
18.01.1995Fee for grant paid
18.01.1995Fee for publishing/printing paid
Opposition(s)15.03.1996No opposition filed within time limit [1996/23]
Fees paidRenewal fee
17.12.1993Renewal fee patent year 03
22.12.1994Renewal fee patent year 04
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Lapses during opposition  TooltipBE14.06.1995
ES14.06.1995
IT14.06.1995
GB05.12.1995
[2008/02]
Former [2002/25]BE14.06.1995
ES14.06.1995
IT14.06.1995
GB05.12.1995
Former [1999/42]BE14.06.1995
IT14.06.1995
GB05.12.1995
Former [1997/14]BE14.06.1995
GB05.12.1995
Former [1996/06]BE14.06.1995
Documents cited:Search[YD]GB687991  (CELANESE CORP);
 [A]US2993916  (NORMINGTON JAMES B);
 [A]US4772732  (HUANG MAO Y [US], et al)
 [Y]  - CHEMICAL ABSTRACTS, vol. 68, no. 25, 17 June 1968, Columbus, Ohio, US; abstract no. 113713G, T. SUZUKI ET AL: 'Hydrolysis and alcoholysis by macroreticular ion-exchange resin catalysts' page 1094 ;
Examination   - Chemical Communications, 1969, page 1377
    - Ion Exchanges, K. Dorfner (Editor), W. de Gruyter (Pub) Berlin 1991, page 982
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.